Classical Flutter and Active Control of Wind Turbine Blade Based on Piezoelectric Actuation

Figure 2

Maximum real parts of eigenvalues versus velocities (a) and the responses for both  m/s and  m/s under situation of without piezoelectric materials (b).

(a) Maximum real parts of eigenvalues versus velocities

(b) The responses of vertical bending , twist , and transverse shear motions for both  m/s and  m/s